Improvement in baths for treating iron



UNITED STATES PATENT OFFIoEt CHRISTIAN ZIEGENHEIM, on ALLEGHENY, PENNLVA IA.

IMPROVEMENT IN BATHS FOR TREATING IRON Specification-forming part ofLetters Patent No. 178,700, dated June 13, 1876; application filed 7April 25', 1876. v

To all whom it may concern:

HEIM, of Allegheny, Allegheny county, Pennsylvania, have invented a newand Improved Bath for Treating Iron, of which the following is aspecification:

I make a bath of sal-soda, ten pounds; caustic soda, three pounds;borai'z, one pound and lime, one pound, dissolved in clear water, inwhich 1 cool the iron, or wash it when cold, to be united to steel inthe manufacture of axes, plows, hoes, axles, shafting, and otherarticles to be made of a combination of iron and steel, to prepare theiron for uniting with the steel by pouring the latter in a melted stateon the former placed in amold.

After washing the iron withthe aforesaid bath, and before placing it inthe mold, I rub as new and desire to secure by Letters Patent- Y Theherein-described compound for the treatment of iron preparatory touniting it with steel by casting the steel on the iron, consisting ofsal-soda, caustic soda, borax, lime, and

Water, substantially in the proportions herein specified.

CHRISTIAN ZIEGENHEIM. Witnesses: I

SAMUEL HACKWELDER, W. H. WENTZ.

